package jlu.zqq.dao;

import java.util.List;

import jlu.zqq.po.FileManager;

import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.criterion.Example;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A data access object (DAO) providing persistence and search support for
 * FileManager entities. Transaction control of the save(), update() and
 * delete() operations can directly support Spring container-managed
 * transactions or they can be augmented to handle user-managed Spring
 * transactions. Each of these methods provides additional information for how
 * to configure it for the desired type of transaction control.
 * 
 * @see jlu.zqq.po.FileManager
 * @author MyEclipse Persistence Tools
 */
public class FileManagerDAO extends BaseHibernateDAO {
	private static final Logger log = LoggerFactory
			.getLogger(FileManagerDAO.class);
	// property constants
	public static final String FILENAME = "filename";
	public static final String FTYPE = "ftype";
	public static final String MS = "ms";
	public static final String BZ = "bz";
	public static final String DOWNLOADURL = "downloadurl";

	public void save(FileManager transientInstance) {
		log.debug("saving FileManager instance");
		try {
			getSession().beginTransaction();
			getSession().save(transientInstance);
			getSession().getTransaction().commit();
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}finally{
			getSession().close();
		}
	}

	public void delete(FileManager persistentInstance) {
		log.debug("deleting FileManager instance");
		try {
			getSession().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public FileManager findById(java.lang.Integer id) {
		log.debug("getting FileManager instance with id: " + id);
		try {
			FileManager instance = (FileManager) getSession().get(
					"jlu.zqq.po.FileManager", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(FileManager instance) {
		log.debug("finding FileManager instance by example");
		try {
			List results = getSession()
					.createCriteria("jlu.zqq.po.FileManager")
					.add(Example.create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding FileManager instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from FileManager as model where model."
					+ propertyName + "= ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByFilename(Object filename) {
		return findByProperty(FILENAME, filename);
	}

	public List findByFtype(Object ftype) {
		return findByProperty(FTYPE, ftype);
	}

	public List findByMs(Object ms) {
		return findByProperty(MS, ms);
	}

	public List findByBz(Object bz) {
		return findByProperty(BZ, bz);
	}

	public List findAll() {
		log.debug("finding all FileManager instances");
		try {
			String queryString = "from FileManager";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public FileManager merge(FileManager detachedInstance) {
		log.debug("merging FileManager instance");
		try {
			FileManager result = (FileManager) getSession().merge(
					detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(FileManager instance) {
		log.debug("attaching dirty FileManager instance");
		try {
			getSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(FileManager instance) {
		log.debug("attaching clean FileManager instance");
		try {
			getSession().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}
}